/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.druid.segment;

import org.apache.druid.data.input.InputRow;
import org.apache.druid.query.datasourcemetadata.DataSourceMetadataQuery;
import org.apache.druid.query.datasourcemetadata.DataSourceMetadataResultValue;
import org.joda.time.DateTime;

/**
 * Inspector used by {@link DataSourceMetadataQuery} to populate
 * {@link DataSourceMetadataResultValue#getMaxIngestedEventTime()}.
 */
public interface MaxIngestedEventTimeInspector
{
  /**
   * Highest known {@link InputRow#getTimestamp()} for rows that went into creating this index.
   */
  DateTime getMaxIngestedEventTime();
}
